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PYGM

Chr 11q13.1

glycogen phosphorylase, muscle associated

Aliases:
GSD5
MANE:
ENST00000164139.4

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Acute rhabdomyolysis

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Glycogen storage disease

    BIALLELIC, autosomal or pseudoautosomal
  • Glycogen storage disease V

    BIALLELIC, autosomal or pseudoautosomal
  • Hyperammonaemia

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Limb girdle muscular dystrophies, myofibrillar myopathies and distal myopathies

    BIALLELIC, autosomal or pseudoautosomal
  • Retinal disorders

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • glycogen storage disease V

    0.85
  • Tip-toe gait

    0.50
  • hereditary disease

    0.47
  • disorder of glycogen metabolism

    0.41
  • Acute rhabdomyolysis

    0.41
  • macular dystrophy, retinal

    0.37
  • hereditary skeletal muscle disorder

    0.34
  • rhabdomyolysis

    0.27
  • Abnormality of metabolism/homeostasis

    0.27
  • neurodegenerative disease

    0.25

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Glycogen phosphorylase, muscle form

Allosteric enzyme that catalyzes the rate-limiting step in glycogen catabolism, the phosphorolytic cleavage of glycogen to produce glucose-1-phosphate, and plays a central role in maintaining cellular and organismal glucose homeostasis

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.